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Table 2 Influence of postural sway on spinal measurements

From: Optimization of the examination posture in spinal curvature assessment

Parameter Posture Comp.
   A G G – A
   MSD MSD Δ
shift [mm] 2.6 0.8 −1.8*
tilt [°] 0.3 0.1 −0.2*
α C [°] 1.8 0.8 −1.0*
α T [°] 1.5 0.5 −0.9*
α L [°] 1.4 0.4 −0.9*
  1. Posture A – free standing position.
  2. Posture G – standing position supported by a fixation frame.
  3. MSD – mean of standard deviations.
  4. Δ – difference of parameters.
  5. shift – sagittal shift.
  6. tilt – sagittal tilt.
  7. α C – angle of cervical lordosis.
  8. α T – angle of thoracic kyphosis.
  9. α L – angle of lumbar lordosis.
  10. * – statistically significant (p < 0.05, paired t-test).